Example usage for io.netty.util Attribute setIfAbsent

Introduction

In this page you can find the example usage for io.netty.util Attribute setIfAbsent.

Prototype

T setIfAbsent(T value);

Source Link

Document

Atomically sets to the given value if this Attribute 's value is null .

Usage

From source file:com.ebay.jetstream.http.netty.server.KeepAliveHandler.java

License:MIT License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    Attribute<AtomicInteger> attr = ctx.attr(REQUEST_COUNT);
    if (attr.get() == null) {
        attr.setIfAbsent(new AtomicInteger());
    }/*from   w  w  w. j a va  2s . c om*/
    attr.get().incrementAndGet();
    ctx.fireChannelRead(msg);
}

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From source file:com.linecorp.armeria.common.logback.RequestContextExportingAppender.java

License:Apache License

private static State state(RequestContext ctx) {
    final Attribute<State> attr = ctx.attr(STATE);
    final State state = attr.get();
    if (state == null) {
        final State newState = new State();
        final State oldState = attr.setIfAbsent(newState);
        if (oldState != null) {
            return oldState;
        } else {/*from   w ww  . j a  v  a2  s . c o  m*/
            return newState;
        }
    }
    return state;
}

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From source file:com.linecorp.armeria.internal.DefaultAttributeMapTest.java

License:Apache License

@Test
public void testGetSetString() {
    AttributeKey<String> key = AttributeKey.valueOf("Nothing");
    Attribute<String> one = map.attr(key);

    assertSame(one, map.attr(key));//from   ww  w .  ja  v  a  2  s  . c  o m

    one.setIfAbsent("Whoohoo");
    assertSame("Whoohoo", one.get());

    one.setIfAbsent("What");
    assertNotSame("What", one.get());

    one.remove();
    assertNull(one.get());
}

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From source file:com.linecorp.armeria.internal.DefaultAttributeMapTest.java

License:Apache License

@Test
public void testGetSetInt() {
    AttributeKey<Integer> key = AttributeKey.valueOf("Nada");
    Attribute<Integer> one = map.attr(key);

    assertSame(one, map.attr(key));//w  w  w  .  ja  v  a 2  s . c o m

    one.setIfAbsent(3653);
    assertEquals(Integer.valueOf(3653), one.get());

    one.setIfAbsent(1);
    assertNotSame(1, one.get());

    one.remove();
    assertNull(one.get());
}

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From source file:de.unipassau.isl.evs.ssh.core.network.handler.TimeoutHandler.java

License:Open Source License

public static boolean getPingEnabled(Channel ch) {
    final Attribute<Boolean> attr = ch.attr(SEND_PINGS);
    attr.setIfAbsent(false);
    return attr.get();
}

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From source file:org.jupiter.registry.ConfigClient.java

License:Apache License

private static boolean attachPublishEventOnChannel(RegisterMeta meta, Channel channel) {
    Attribute<ConcurrentSet<RegisterMeta>> attr = channel.attr(C_PUBLISH_KEY);
    ConcurrentSet<RegisterMeta> registerMetaSet = attr.get();
    if (registerMetaSet == null) {
        ConcurrentSet<RegisterMeta> newRegisterMetaSet = new ConcurrentSet<>();
        registerMetaSet = attr.setIfAbsent(newRegisterMetaSet);
        if (registerMetaSet == null) {
            registerMetaSet = newRegisterMetaSet;
        }/*w  w  w  .j  ava 2s .c om*/
    }

    return registerMetaSet.add(meta);
}

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From source file:org.jupiter.registry.ConfigClient.java

License:Apache License

private static boolean attachSubscribeEventOnChannel(ServiceMeta serviceMeta, Channel channel) {
    Attribute<ConcurrentSet<ServiceMeta>> attr = channel.attr(C_SUBSCRIBE_KEY);
    ConcurrentSet<ServiceMeta> serviceMetaSet = attr.get();
    if (serviceMetaSet == null) {
        ConcurrentSet<ServiceMeta> newServiceMetaSet = new ConcurrentSet<>();
        serviceMetaSet = attr.setIfAbsent(newServiceMetaSet);
        if (serviceMetaSet == null) {
            serviceMetaSet = newServiceMetaSet;
        }/*from w  w  w .j  av a 2  s. co m*/
    }

    return serviceMetaSet.add(serviceMeta);
}

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From source file:org.jupiter.registry.ConfigServer.java

License:Apache License

private static boolean attachPublishEventOnChannel(RegisterMeta meta, Channel channel) {
    Attribute<ConcurrentSet<RegisterMeta>> attr = channel.attr(S_PUBLISH_KEY);
    ConcurrentSet<RegisterMeta> registerMetaSet = attr.get();
    if (registerMetaSet == null) {
        ConcurrentSet<RegisterMeta> newRegisterMetaSet = new ConcurrentSet<>();
        registerMetaSet = attr.setIfAbsent(newRegisterMetaSet);
        if (registerMetaSet == null) {
            registerMetaSet = newRegisterMetaSet;
        }//from w  w  w  . j av  a  2 s .co m
    }

    return registerMetaSet.add(meta);
}

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From source file:org.jupiter.registry.ConfigServer.java

License:Apache License

private static boolean attachPublishCancelEventOnChannel(RegisterMeta meta, Channel channel) {
    Attribute<ConcurrentSet<RegisterMeta>> attr = channel.attr(S_PUBLISH_KEY);
    ConcurrentSet<RegisterMeta> registerMetaSet = attr.get();
    if (registerMetaSet == null) {
        ConcurrentSet<RegisterMeta> newRegisterMetaSet = new ConcurrentSet<>();
        registerMetaSet = attr.setIfAbsent(newRegisterMetaSet);
        if (registerMetaSet == null) {
            registerMetaSet = newRegisterMetaSet;
        }//from  w  ww.ja  v a2  s . com
    }

    return registerMetaSet.remove(meta);
}

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From source file:org.jupiter.registry.ConfigServer.java

License:Apache License

private static boolean attachSubscribeEventOnChannel(ServiceMeta serviceMeta, Channel channel) {
    Attribute<ConcurrentSet<ServiceMeta>> attr = channel.attr(S_SUBSCRIBE_KEY);
    ConcurrentSet<ServiceMeta> serviceMetaSet = attr.get();
    if (serviceMetaSet == null) {
        ConcurrentSet<ServiceMeta> newServiceMetaSet = new ConcurrentSet<>();
        serviceMetaSet = attr.setIfAbsent(newServiceMetaSet);
        if (serviceMetaSet == null) {
            serviceMetaSet = newServiceMetaSet;
        }/*from www .j av  a2s  . c  o m*/
    }

    return serviceMetaSet.add(serviceMeta);
}

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